BIO-RAD LABORATORIES, INC. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| WRIGHT DARA | Executive Vice President | Tax Withholding | 150 | $394.60 | $59,190 | 2,682 | Sep 1, 2023 |
| ERNST TIMOTHY S | EVP, General Counsel & Sec | Tax Withholding | 173 | $394.60 | $68,266 | 2,590 | Sep 1, 2023 |
| RAMALINGAM AJIT | SVP, Chief Accounting Officer | Option Exercise | 173 | — | — | 196 | Sep 1, 2023 |
| Crowley Michael | EVP, GBL Commercial Operations | Tax Withholding | 202 | $394.60 | $79,709 | 7,282 | Sep 1, 2023 |
| Daskal Ilan | EVP, Chief Financial Officer | Tax Withholding | 269 | $394.60 | $106,147 | 2,486 | Sep 1, 2023 |
| MAY SIMON | EVP, President, LSG | Option Exercise | 409 | — | — | 2,598 | Sep 1, 2023 |
| COREY COLLEEN | EVP, Global Human Resources | Tax Withholding | 125 | $394.60 | $49,325 | 16,508 | Sep 1, 2023 |
| ERNST TIMOTHY S | EVP, General Counsel & Sec | Option Exercise | 2,350 | $215.98 | $507,553 | 4,766 | Aug 30, 2023 |
| SCHWARTZ NORMAN D | Chairman, President, and CEO | Tax Withholding | 25,389 | $381.78 | $9,693,012 | 345,300 | Aug 25, 2023 |
| ERNST TIMOTHY S | EVP, General Counsel & Sec | Sale | 300 | $384.69 | $115,407 | 2,416 | Aug 23, 2023 |
| Crowley Michael | EVP, GBL Commercial Operations | Sale | 500 | $379.39 | $189,695 | 6,040 | Jun 15, 2023 |
| RAMALINGAM AJIT | SVP, Chief Accounting Officer | Sale | 17 | $368.49 | $6,393 | 181 | Jun 6, 2023 |
| SCHWARTZ STEVEN D | — | Sale | 320 | $463.86 | $148,435 | 1,498 | May 3, 2023 |
| Last Andrew J. | EVP, Chief Operating Officer | Option Exercise | 1,000 | — | — | 4,113 | Apr 29, 2023 |
| RAMALINGAM AJIT | SVP, Chief Accounting Officer | Option Exercise | 277 | — | — | 294 | Apr 29, 2023 |
| Daskal Ilan | EVP, Chief Financial Officer | Tax Withholding | 243 | $466.24 | $113,296 | 1,493 | Apr 8, 2023 |
| ERNST TIMOTHY S | EVP, General Counsel & Sec | Option Exercise | 850 | $159.32 | $135,422 | 4,267 | Mar 8, 2023 |
| WRIGHT DARA | Executive Vice President | Option Exercise | 502 | — | — | 1,988 | Dec 16, 2022 |
| RAMALINGAM AJIT | SVP, Chief Accounting Officer | Sale | 0 | $423.61 | $161 | — | Nov 10, 2022 |
| SCHWARTZ STEVEN D | — | Gift | 42 | — | — | 25,128 | Nov 7, 2022 |
| SCHWARTZ NORMAN D | Chairman, President, and CEO | Gift | 42 | — | — | 331,689 | Nov 7, 2022 |
| Allison Schwartz | — | Gift | 42 | — | — | 3,890 | Nov 7, 2022 |
| SCHWARTZ ALICE N | — | Gift | 2,639 | — | — | 1,787,816 | Nov 7, 2022 |
| SCHWARTZ NORMAN D | Chairman, President, and CEO | Tax Withholding | 1,094 | $478.32 | $523,282 | 424,880 | Sep 4, 2022 |
| ERNST TIMOTHY S | EVP, General Counsel & Sec | Tax Withholding | 248 | $478.32 | $118,623 | 3,153 | Sep 4, 2022 |
| Dahowski Diane | EVP, Global Supply Chain | Tax Withholding | 298 | $478.32 | $142,539 | 10,384 | Sep 4, 2022 |
| Crowley Michael | EVP, GBL Commercial Operations | Option Exercise | 557 | — | — | 6,177 | Sep 4, 2022 |
| Allison Schwartz | — | Option Exercise | 56 | — | — | 955 | Sep 3, 2022 |
| WRIGHT DARA | Executive Vice President | Tax Withholding | 150 | $478.32 | $71,748 | 1,460 | Sep 2, 2022 |
| RAMALINGAM AJIT | SVP, Chief Accounting Officer | Tax Withholding | 84 | $478.32 | $40,179 | 366 | Sep 2, 2022 |
| MAY SIMON | EVP, President, LSG | Option Exercise | 600 | — | — | 1,848 | Sep 2, 2022 |
| Last Andrew J. | EVP, Chief Operating Officer | Option Exercise | 902 | — | — | 3,531 | Sep 2, 2022 |
| Daskal Ilan | EVP, Chief Financial Officer | Tax Withholding | 269 | $478.32 | $128,668 | 953 | Sep 2, 2022 |
| WRIGHT DARA | Executive Vice President | Tax Withholding | 141 | $486.25 | $68,561 | 1,177 | Sep 1, 2022 |
| SCHWARTZ NORMAN D | Chairman, President, and CEO | Option Exercise | 1,266 | — | — | 424,936 | Sep 1, 2022 |
| Allison Schwartz | — | Option Exercise | 30 | — | — | 886 | Sep 1, 2022 |
| RAMALINGAM AJIT | SVP, Chief Accounting Officer | Tax Withholding | 59 | $486.25 | $28,689 | 209 | Sep 1, 2022 |
| MAY SIMON | EVP, President, LSG | Tax Withholding | 129 | $486.25 | $62,726 | 322 | Sep 1, 2022 |
| Last Andrew J. | EVP, Chief Operating Officer | Tax Withholding | 314 | $486.25 | $152,683 | 2,629 | Sep 1, 2022 |
| ERNST TIMOTHY S | EVP, General Counsel & Sec | Tax Withholding | 88 | $486.25 | $42,790 | 2,362 | Sep 1, 2022 |
| Dahowski Diane | EVP, Global Supply Chain | Tax Withholding | 114 | $486.25 | $55,433 | 9,237 | Sep 1, 2022 |
| Crowley Michael | EVP, GBL Commercial Operations | Tax Withholding | 141 | $486.25 | $68,561 | 5,337 | Sep 1, 2022 |
| Daskal Ilan | EVP, Chief Financial Officer | Tax Withholding | 226 | $486.25 | $109,893 | 681 | Sep 1, 2022 |
| SCHWARTZ NORMAN D | Chairman, President, and CEO | Tax Withholding | 23,749 | $495.28 | $11,762,405 | 331,647 | Aug 26, 2022 |
| RAMALINGAM AJIT | SVP, Chief Accounting Officer | Sale | 518 | $537.00 | $278,166 | 99 | Aug 5, 2022 |
| Last Andrew J. | EVP, Chief Operating Officer | Tax Withholding | 471 | $512.06 | $241,180 | 2,293 | Apr 29, 2022 |
| RAMALINGAM AJIT | SVP, Chief Accounting Officer | Tax Withholding | 96 | $512.06 | $49,158 | 602 | Apr 29, 2022 |
| Daskal Ilan | EVP, Chief Financial Officer | Option Exercise | 700 | — | — | 709 | Apr 8, 2022 |
| WRIGHT DARA | Executive Vice President | Option Exercise | 502 | — | — | 1,113 | Dec 16, 2021 |
| TUMOLO ANNETTE | Executive Vice President | Option Exercise | 433 | $524.30 | $227,022 | 6,139 | Nov 11, 2021 |